﻿using System.Collections.Specialized;
using System.Web.Security;
using MugenInjection.Exceptions;
using MugenInjection.Web.Mvc.Config;

namespace MugenInjection.Web.Mvc.Providers
{
    /// <summary>
    /// Providing integration with <see cref="RoleProvider"/>.
    /// </summary>
    public class MugenInjectionRoleProvider : RoleProvider
    {
        #region Fields

        private readonly RoleProvider _roleProvider;

        #endregion

        #region Constructor

        /// <summary>
        /// Initializes a new instance of the <see cref="MugenInjectionRoleProvider"/> class. 
        /// </summary>
        public MugenInjectionRoleProvider()
        {
            if (!MugenInjectionHttpApplication.ApplicationConfiguration.Injector.TryGet(out _roleProvider,
                                                   MvcConfigExtension.RoleProviderSetting))
                throw new InvalidSettingException(
                    "Custom RoleProvider not found, use the method for register WithCustomRoleProvider.");
        }

        #endregion

        #region Overrides of RoleProvider

        /// <summary>
        /// Gets or sets the name of the application to store and retrieve role information for.
        /// </summary>
        /// <returns>
        /// The name of the application to store and retrieve role information for.
        /// </returns>
        public override string ApplicationName
        {
            get { return _roleProvider.ApplicationName; }
            set { _roleProvider.ApplicationName = value; }
        }

        /// <summary>
        /// Gets a value indicating whether the specified user is in the specified role for the configured applicationName.
        /// </summary>
        /// <returns>
        /// true if the specified user is in the specified role for the configured applicationName; otherwise, false.
        /// </returns>
        /// <param name="username">The user name to search for.</param><param name="roleName">The role to search in.</param>
        public override bool IsUserInRole(string username, string roleName)
        {
            return _roleProvider.IsUserInRole(username, roleName);
        }

        /// <summary>
        /// Gets a list of the roles that a specified user is in for the configured applicationName.
        /// </summary>
        /// <returns>
        /// A string array containing the names of all the roles that the specified user is in for the configured applicationName.
        /// </returns>
        /// <param name="username">The user to return a list of roles for.</param>
        public override string[] GetRolesForUser(string username)
        {
            return _roleProvider.GetRolesForUser(username);
        }

        /// <summary>
        /// Adds a new role to the data source for the configured applicationName.
        /// </summary>
        /// <param name="roleName">The name of the role to create.</param>
        public override void CreateRole(string roleName)
        {
            _roleProvider.CreateRole(roleName);
        }

        /// <summary>
        /// Removes a role from the data source for the configured applicationName.
        /// </summary>
        /// <returns>
        /// true if the role was successfully deleted; otherwise, false.
        /// </returns>
        /// <param name="roleName">The name of the role to delete.</param><param name="throwOnPopulatedRole">If true, throw an exception if <paramref name="roleName"/> has one or more members and do not delete <paramref name="roleName"/>.</param>
        public override bool DeleteRole(string roleName, bool throwOnPopulatedRole)
        {
            return _roleProvider.DeleteRole(roleName, throwOnPopulatedRole);
        }

        /// <summary>
        /// Gets a value indicating whether the specified role name already exists in the role data source for the configured applicationName.
        /// </summary>
        /// <returns>
        /// true if the role name already exists in the data source for the configured applicationName; otherwise, false.
        /// </returns>
        /// <param name="roleName">The name of the role to search for in the data source.</param>
        public override bool RoleExists(string roleName)
        {
            return _roleProvider.RoleExists(roleName);
        }

        /// <summary>
        /// Adds the specified user names to the specified roles for the configured applicationName.
        /// </summary>
        /// <param name="usernames">A string array of user names to be added to the specified roles. </param><param name="roleNames">A string array of the role names to add the specified user names to.</param>
        public override void AddUsersToRoles(string[] usernames, string[] roleNames)
        {
            _roleProvider.AddUsersToRoles(usernames, roleNames);
        }

        /// <summary>
        /// Removes the specified user names from the specified roles for the configured applicationName.
        /// </summary>
        /// <param name="usernames">A string array of user names to be removed from the specified roles. </param><param name="roleNames">A string array of role names to remove the specified user names from.</param>
        public override void RemoveUsersFromRoles(string[] usernames, string[] roleNames)
        {
            _roleProvider.RemoveUsersFromRoles(usernames, roleNames);
        }

        /// <summary>
        /// Gets a list of users in the specified role for the configured applicationName.
        /// </summary>
        /// <returns>
        /// A string array containing the names of all the users who are members of the specified role for the configured applicationName.
        /// </returns>
        /// <param name="roleName">The name of the role to get the list of users for.</param>
        public override string[] GetUsersInRole(string roleName)
        {
            return _roleProvider.GetUsersInRole(roleName);
        }

        /// <summary>
        /// Gets a list of all the roles for the configured applicationName.
        /// </summary>
        /// <returns>
        /// A string array containing the names of all the roles stored in the data source for the configured applicationName.
        /// </returns>
        public override string[] GetAllRoles()
        {
            return _roleProvider.GetAllRoles();
        }

        /// <summary>
        /// Gets an array of user names in a role where the user name contains the specified user name to match.
        /// </summary>
        /// <returns>
        /// A string array containing the names of all the users where the user name matches <paramref name="usernameToMatch"/> and the user is a member of the specified role.
        /// </returns>
        /// <param name="roleName">The role to search in.</param><param name="usernameToMatch">The user name to search for.</param>
        public override string[] FindUsersInRole(string roleName, string usernameToMatch)
        {
            return _roleProvider.FindUsersInRole(roleName, usernameToMatch);
        }

        #endregion

        #region Overrides of ProviderBase

        /// <summary>
        /// Gets the friendly name used to refer to the provider during configuration.
        /// </summary>
        /// <returns>
        /// The friendly name used to refer to the provider during configuration.
        /// </returns>
        public override string Name
        {
            get { return _roleProvider.Name; }
        }

        /// <summary>
        /// Gets a brief, friendly description suitable for display in administrative tools or other user interfaces (UIs).
        /// </summary>
        /// <returns>
        /// A brief, friendly description suitable for display in administrative tools or other UIs.
        /// </returns>
        public override string Description
        {
            get { return _roleProvider.Description; }
        }

        /// <summary>
        /// Initializes the provider.
        /// </summary>
        /// <param name="name">The friendly name of the provider.</param><param name="config">A collection of the name/value pairs representing the provider-specific attributes specified in the configuration for this provider.</param><exception cref="T:System.ArgumentNullException">The name of the provider is null.</exception><exception cref="T:System.ArgumentException">The name of the provider has a length of zero.</exception><exception cref="T:System.InvalidOperationException">An attempt is made to call <see cref="M:System.Configuration.Provider.ProviderBase.Initialize(System.String,System.Collections.Specialized.NameValueCollection)"/> on a provider after the provider has already been initialized.</exception>
        public override void Initialize(string name, NameValueCollection config)
        {
            _roleProvider.Initialize(name, config);
        }

        #endregion
    }
}